Add ferris 0.2 (qmk#12133)

Co-authored-by: Ryan <fauxpark@gmail.com>

keyboards/ferris/0_1/matrix.c

@@ -72,40 +72,25 @@ uint8_t init_mcp23017(void) {
     // - unused  : input  : 1
     // - input   : input  : 1
     // - driving : output : 0
-    mcp23017_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT);
-    if (mcp23017_status) goto out;
-    mcp23017_status = i2c_write(IODIRA, I2C_TIMEOUT);
-    if (mcp23017_status) goto out;
     // This means: we will read all the bits on GPIOA
-    mcp23017_status = i2c_write(0b11111111, I2C_TIMEOUT);
-    if (mcp23017_status) goto out;
     // This means: we will write to the pins 0-4 on GPIOB (in select_rows)
-    mcp23017_status = i2c_write(0b11110000, I2C_TIMEOUT);
-    if (mcp23017_status) goto out;
-    i2c_stop();
-
-    // set pull-up
-    // - unused  : on  : 1
-    // - input   : on  : 1
-    // - driving : off : 0
-    mcp23017_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT);
-    if (mcp23017_status) goto out;
-    mcp23017_status = i2c_write(GPPUA, I2C_TIMEOUT);
-    if (mcp23017_status) goto out;
-    // This means: we will read all the bits on GPIOA
-    mcp23017_status = i2c_write(0b11111111, I2C_TIMEOUT);
-    if (mcp23017_status) goto out;
-    // This means: we will write to the pins 0-4 on GPIOB (in select_rows)
-    mcp23017_status = i2c_write(0b11110000, I2C_TIMEOUT);
-    if (mcp23017_status) goto out;
-
-out:
-    i2c_stop();
+    uint8_t buf[]   = {IODIRA, 0b11111111, 0b11110000};
+    mcp23017_status = i2c_transmit(I2C_ADDR_WRITE, buf, sizeof(buf), I2C_TIMEOUT);
+    if (!mcp23017_status) {
+        // set pull-up
+        // - unused  : on  : 1
+        // - input   : on  : 1
+        // - driving : off : 0
+        // This means: we will read all the bits on GPIOA
+        // This means: we will write to the pins 0-4 on GPIOB (in select_rows)
+        uint8_t pullup_buf[] = {GPPUA, 0b11111111, 0b11110000};
+        mcp23017_status      = i2c_transmit(I2C_ADDR_WRITE, pullup_buf, sizeof(pullup_buf), I2C_TIMEOUT);
+    }
     return mcp23017_status;
 }
 
 /* matrix state(1:on, 0:off) */
-static matrix_row_t matrix[MATRIX_ROWS];      // debounced values
+static matrix_row_t matrix[MATRIX_ROWS];  // debounced values
 
 static matrix_row_t read_cols(uint8_t row);
 static void         init_cols(void);
@@ -124,7 +109,7 @@ void matrix_init_custom(void) {
 
     // initialize matrix state: all keys off
     for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-        matrix[i]     = 0;
+        matrix[i] = 0;
     }
 }
 
@@ -217,25 +202,18 @@ static matrix_row_t read_cols(uint8_t row) {
         if (mcp23017_status) {  // if there was an error
             return 0;
         } else {
-            uint8_t data    = 0;
-            mcp23017_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT);
-            if (mcp23017_status) goto out;
-            mcp23017_status = i2c_write(GPIOA, I2C_TIMEOUT);
-            if (mcp23017_status) goto out;
-            mcp23017_status = i2c_start(I2C_ADDR_READ, I2C_TIMEOUT);
-            if (mcp23017_status) goto out;
-            mcp23017_status = i2c_read_nack(I2C_TIMEOUT);
-            if (mcp23017_status < 0) goto out;
+            uint8_t buf[]   = {GPIOA};
+            mcp23017_status = i2c_transmit(I2C_ADDR_WRITE, buf, sizeof(buf), I2C_TIMEOUT);
             // We read all the pins on GPIOA.
             // The initial state was all ones and any depressed key at a given column for the currently selected row will have its bit flipped to zero.
             // The return value is a row as represented in the generic matrix code were the rightmost bits represent the lower columns and zeroes represent non-depressed keys while ones represent depressed keys.
             // Since the pins connected to eact columns are sequential, and counting from zero up (col 5 -> GPIOA0, col 6 -> GPIOA1 and so on), the only transformation needed is a bitwise not to swap all zeroes and ones.
-            data            = ~((uint8_t)mcp23017_status);
-            mcp23017_status = I2C_STATUS_SUCCESS;
-        out:
-            i2c_stop();
-            // return reverse_bits(data, MATRIX_COLS_PER_SIDE);
-            return data;
+            uint8_t data[] = {0};
+            if (!mcp23017_status) {
+                mcp23017_status = i2c_receive(I2C_ADDR_READ, data, sizeof(data), I2C_TIMEOUT);
+                data[0]         = ~(data[0]);
+            }
+            return data[0];
         }
     }
 }
@@ -266,17 +244,10 @@ static void select_row(uint8_t row) {
         if (mcp23017_status) {  // if there was an error
                                 // do nothing
         } else {
-            mcp23017_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT);
-            if (mcp23017_status) goto out;
-            mcp23017_status = i2c_write(GPIOB, I2C_TIMEOUT);
-            if (mcp23017_status) goto out;
             // Select the desired row by writing a byte for the entire GPIOB bus where only the bit representing the row we want to select is a zero (write instruction) and every other bit is a one.
             // Note that the row - MATRIX_ROWS_PER_SIDE reflects the fact that being on the right hand, the columns are numbered from MATRIX_ROWS_PER_SIDE to MATRIX_ROWS, but the pins we want to write to are indexed from zero up on the GPIOB bus.
-            mcp23017_status = i2c_write(0xFF & ~(1 << (row - MATRIX_ROWS_PER_SIDE)), I2C_TIMEOUT);
-
-            if (mcp23017_status) goto out;
-        out:
-            i2c_stop();
+            uint8_t buf[]   = {GPIOB, 0xFF & ~(1 << (row - MATRIX_ROWS_PER_SIDE))};
+            mcp23017_status = i2c_transmit(I2C_ADDR_WRITE, buf, sizeof(buf), I2C_TIMEOUT);
         }
     }
 }

keyboards/ferris/0_1/readme.md

@@ -0,0 +1,17 @@
+# Ferris 0.1
+
+![Ferris 0.1 - base, top view](https://i.imgur.com/s6nTn0Ch.jpg)
+![Ferris 0.1 - base, bottom view](https://i.imgur.com/Ymlac2Ah.jpg)
+
+An atmega32u4 based split 34 keys column staggered keyboard named and decorated after the rustlang mascott. All PCB files and some thoughts on the design are available on the [project's github page](https://github.com/pierrechevalier83/ferris)
+
+* Keyboard Maintainer: [Pierre Chevalier](https://github.com/pierrechevalier83)
+* Hardware Supported:
+	* Ferris 0.1: atmega32u4 chip. Comes in 4 variants: base, low, high and compact
+* Hardware Availability: Pierre Chevalier has been selling keyboard kits (see the #ferris channel in the 40% discord chat). Wider availability is on the horizon.
+
+Make examples for this keyboard (after setting up your build environment):
+
+    make ferris/0_1:default
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).

keyboards/ferris/0_2/0_2.c

@@ -0,0 +1,17 @@
+/*
+Copyright 2020 Pierre Chevalier <pierrechevalier83@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#include "0_2.h"

keyboards/ferris/0_2/0_2.h

@@ -0,0 +1,43 @@
+/*
+Copyright 2020 Pierre Chevalier <pierrechevalier83@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+#include "quantum.h"
+
+// clang-format off
+
+/*              left hand                           right hand      */
+#define LAYOUT(\
+    K0_0, K0_1, K0_2, K0_3, K0_4,       K0_5, K0_6, K0_7, K0_8, K0_9,\
+    K1_0, K1_1, K1_2, K1_3, K1_4,       K1_5, K1_6, K1_7, K1_8, K1_9,\
+    K2_0, K2_1, K2_2, K2_3, K2_4,       K2_5, K2_6, K2_7, K2_8, K2_9,\
+                        K3_3, K3_4,   K3_5, K3_6)\
+/* matrix positions */\
+{\
+    {K0_0,  K0_1,  K0_2,  K0_3,  K0_4},\
+    {K1_0,  K1_1,  K1_2,  K1_3,  K1_4},\
+    {K2_0,  K2_1,  K2_2,  K2_3,  K2_4},\
+    {KC_NO, KC_NO, KC_NO, K3_3,  K3_4},\
+	\
+	{K0_5,  K0_6,  K0_7,  K0_8,  K0_9},\
+	{K1_5,  K1_6,  K1_7,  K1_8,  K1_9},\
+	{K2_5,  K2_6,  K2_7,  K2_8,  K2_9},\
+	{K3_5,  K3_6, KC_NO,  KC_NO, KC_NO}\
+}
+
+// clang-format on

keyboards/ferris/0_2/chconf.h

@@ -0,0 +1,40 @@
+/* Copyright 2020 QMK
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ * This file was auto-generated by:
+ *    `qmk chibios-confmigrate -i keyboards/ferris/0_2/chconf.h -r platforms/chibios/common/configs/chconf.h`
+ */
+
+#pragma once
+
+#define CH_CFG_ST_FREQUENCY 10000
+
+#define CH_CFG_OPTIMIZE_SPEED FALSE
+
+#define CH_CFG_USE_REGISTRY TRUE
+
+#define CH_CFG_USE_WAITEXIT TRUE
+
+#define CH_CFG_USE_CONDVARS TRUE
+
+#define CH_CFG_USE_CONDVARS_TIMEOUT FALSE
+
+#define CH_CFG_USE_MESSAGES TRUE
+
+#define CH_CFG_USE_MAILBOXES TRUE
+
+#include_next <chconf.h>

keyboards/ferris/0_2/config.h

@@ -0,0 +1,80 @@
+/*
+Copyright 2020 Pierre Chevalier <pierrechevalier83@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID 0xC2AB
+#define PRODUCT_ID 0x0001
+#define DEVICE_VER 0x0002
+#define MANUFACTURER Pierre
+#define PRODUCT Ferris the keeb
+
+/* key matrix size */
+#define MATRIX_ROWS 8
+#define MATRIX_COLS 10
+
+#define MATRIX_ROWS_PER_SIDE (MATRIX_ROWS / 2)
+#define MATRIX_COLS_PER_SIDE (MATRIX_COLS / 2)
+
+#define UNUSED_MCU 24
+#define UNUSED_MCP 7
+
+// wiring
+#define MATRIX_ROW_PINS_MCU \
+    { B7, B6, B5, A2 }
+#define MATRIX_COL_PINS_MCU \
+    { B8, B4, B3, A15, A14 }
+#define UNUSED_PINS_MCU \
+    { A0, A1, A3, A4, A5, A6, A7, A8, A9, A10, A13, B0, B1, B2, B9, B12, B13, B14, B15, C13, C14, C15, F0, F1 }
+#define MATRIX_ROW_PINS_MCP \
+    { B0, B1, B2, B3 }
+#define MATRIX_COL_PINS_MCP \
+    { A0, A1, A2, A3, A4 }
+#define UNUSED_PINS_MCP \
+    { B4, B5, B6, B7, A5, A6, A7 }
+
+#define MATRIX_ROW_PINS \
+    { B7, B6, B5, A2, A0, A0, A0, A0 }
+#define MATRIX_COL_PINS \
+    { B8, B4, B3, A15, A14, A1, A1, A1, A1, A1 }
+#define UNUSED_PINS \
+    { A3, A4, A5, A6, A7, A8, A9, A10, A13, B0, B1, B2, B9, B12, B13, B14, B15, C13, C14, C15, F0, F1 }
+
+/* COL2ROW, ROW2COL*/
+#define DIODE_DIRECTION COL2ROW
+
+/* define if matrix has ghost (lacks anti-ghosting diodes) */
+//#define MATRIX_HAS_GHOST
+
+/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
+#define DEBOUNCE 5
+
+/* i2c settings */
+
+#define I2C_DRIVER I2CD2
+#define I2C1_SCL_BANK GPIOB
+#define I2C1_SCL 10
+#define I2C1_SDA_BANK GPIOB
+#define I2C1_SDA 11
+#define I2C1_TIMINGR_PRESC 2U
+#define I2C1_TIMINGR_SCLDEL 1U
+#define I2C1_TIMINGR_SDADEL 0U
+#define I2C1_TIMINGR_SCLH 9U
+#define I2C1_TIMINGR_SCLL 26U
+#define I2C1_SCL_PAL_MODE 1
+#define I2C1_SDA_PAL_MODE 1

keyboards/ferris/0_2/halconf.h

@@ -0,0 +1,30 @@
+/* Copyright 2020 QMK
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ * This file was auto-generated by:
+ *    `qmk chibios-confmigrate -i keyboards/ferris/0_2/halconf.h -r platforms/chibios/common/configs/halconf.h`
+ */
+
+#pragma once
+
+#define HAL_USE_I2C TRUE
+
+#define HAL_USE_PWM TRUE
+
+#define HAL_USE_SPI TRUE
+
+#include_next <halconf.h>